Across
Insert provided in posh catalogue (8)
I haven't cracked this one yet — but Times for the Times have:
IF (provided) contained by [insert…in] CLASS~Y (posh)
Call secretary to return ring (6)
Standard item of cavalier language (8)
Signal to turn right? (6)
I haven't cracked this one yet — but Times for the Times have:
BE A CON (to turn right – become a Conservative )
Heading for escalator, passed on lift (5)
I haven't cracked this one yet — but Times for the Times have:
E {scalator} [heading for…], LATE (passed on)
Before promotions, implement toxic growth (9)
Warning to PR team, scrambling behind collapse (6,6)
Man contributing to partnership on home ground? (12)
I haven't cracked this one yet — but Times for the Times have:
Cryptic
Java product, perhaps filling island cocktail (9)
I haven't cracked this one yet — but Times for the Times have:
APP (Java product, perhaps), LET IN (filling), I (island) . APPLET (Java product, perhaps), IN (filling), I (island). This was the clue that did for me. I never heard of the cocktail; nor have Chambers Word Wizard or Crossword Solver. Thanks to glh for the correction to my original parsing.
Broad humour out of reach these days (5)
Swear in cricket match? (6)
Teacher training left large blunder in writing (8)
Tiresome, what judges get up to (6)
Trusting pub with old foreign money (8)
Down
Heavy metal piano bores manager (6)
Each nest individually overturned antenna (6)
Friend pursuing tasteless drawing (9)
Misshapen ice? A chef must accept consequences (4,3,5)
Crowd ahead of Spurs on sidelines (5)
I haven't cracked this one yet — but Times for the Times have:
PRE (ahead of), then S {pur} S [on sidelines]
Cold stuffing on the way, baked in pastry (2,6)
Letter turned whimsical, gripping as well (8)
I haven't cracked this one yet — but Times for the Times have:
DROL~L (whimsical) reversed [turned] containing [gripping] AND (as well)
Jargon on a ship upset North American — one from Harvard? (12)
I haven't cracked this one yet — but Times for the Times have:
CANT (jargon), A , BRIG (ship), then NA (North American) + I (one) reversed [upset]. That’s Cambridge, Massachusetts
Possibly some faint political statement (9)
Hard to go in for length of friendly game (8)
I haven't cracked this one yet — but Times for the Times have:
P{l}EASANT (friendly) becomes PHEASANT (game) when H (hard) replaces [to go in for] L (length)
Youngster favoured extremely rascally manipulation (8)
I haven't cracked this one yet — but Times for the Times have:
PUP (youngster), PET (favoured), R {ascall} Y [extremely]
Delivered cheeses for picnic (6)
I haven't cracked this one yet — but Times for the Times have:
Aural wordplay [delivered] “Bries” (cheeses). ‘Breeze’ and ‘picnic’ are both used to describe something that’s easy. Or as Dorsetjimbo used to say, ‘a walk in the park’.
Wine selection from customer lottery (6)
Relax topless somewhere in Germany (5)
I haven't cracked this one yet — but Times for the Times have:
{l} ESSEN (relax) [topless]
Type letters or click words in the clue